/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/CollisionResolutionTypes.h
Collision and MidPhases are stored in an ObjectPool (if CHAOS_COLLISION_OBJECTPOOL_ENABLED or CHAOS_MIDPHASE_OBJECTPOOL_ENABLED is set).
typedef [TObjectPool](API\Runtime\ChaosCore\Chaos\TObjectPool)< [FPBDCollisionConstraint](API\Runtime\Chaos\Chaos\Collision\FPBDCollisionConstraint) > FPBDCollisionConstraintPool